Home / 11,678.16-16,117.98-6,897.84

Finding the Fourth Proportional to 11,678.16, 16,117.98 and 6,897.84

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Solution

The fourth proportional to 11,678.16, 16,117.98 and 6,897.84 is: 9,520.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.16 : 16,117.98 = 6,897.84 : x
  2. Step 2: Convert to fraction form
    11,678.16/16,117.98 = 6,897.84/x
  3. Step 3: Cross multiply
    11,678.16x = 16,117.98 × 6,897.84
  4. Step 4: Simplify right side
    11,678.16x = 111,179,247.16
  5. Step 5: Solve for x
    x = 111,179,247.16/11,678.16
  6. Step 6: Final answer
    x = 9,520.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.